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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Lucas Potin, Data Scientist and PhD in Data Mining. Applied data science portfolio covering forecasting, analytics, machine learning, practical data products and a graph mining research background.">
<meta name="keywords" content="Lucas Potin, Data Scientist, PhD in Data Mining, applied data science, forecasting, analytics, machine learning, graph mining, public procurement">
<meta property="og:title" content="Lucas Potin | Data Scientist, PhD in Data Mining">
<meta property="og:description" content="I turn complex data into decision-support tools: forecasting, analytics, machine learning and practical data products.">
<meta property="og:type" content="website">
<meta property="og:image" content="Photo_Lucas.jpeg">
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="Lucas Potin | Data Scientist, PhD in Data Mining">
<meta name="twitter:description" content="Applied data science, forecasting, analytics, machine learning and graph mining research background.">
<meta name="google-site-verification" content="dg1w_g1VCcSc56f1Bz-K7JFDL7Ko54Nbw8ZeHY_DQ6g">
<title>Lucas Potin | Data Scientist & PhD in Data Mining</title>
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<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap" rel="stylesheet">
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</head>
<body>
<header class="site-header">
<a class="brand" href="#top" aria-label="Back to top">
<span class="brand-mark">LP</span>
<span>Lucas Potin</span>
</a>
<button class="nav-toggle" type="button" aria-expanded="false" aria-controls="site-nav">
<span></span>
<span></span>
<span></span>
<span class="sr-only">Menu</span>
</button>
<nav class="site-nav" id="site-nav" aria-label="Main navigation">
<a href="#about">About</a>
<a href="#journey">Journey</a>
<a href="#skills">Skills</a>
<a href="#projects">Projects</a>
<a href="#publications">Publications</a>
<a href="#contact">Contact</a>
<a class="language-link" href="index.html">Français</a>
</nav>
</header>
<main id="top">
<section class="hero section">
<div class="hero-copy">
<p class="hero-name">Lucas Potin</p>
<h1>I turn complex data into decision-support tools</h1>
<p class="hero-role">Data Scientist · AI · PhD in Data Mining</p>
<div class="hero-tags" aria-label="Core profile">
<span>Machine Learning</span>
<span>Graph Mining</span>
<span>AI Engineering</span>
</div>
<div class="hero-actions">
<a class="button button-primary" href="CV_Lucas_POTIN.pdf" target="_blank" rel="noreferrer" aria-label="Open CV in French">CV</a>
<a class="button button-primary" href="CV_POTIN_ENG.pdf" target="_blank" rel="noreferrer" aria-label="Open CV in English">CV (EN)</a>
<a class="button button-secondary" href="https://www.linkedin.com/in/lucas-potin/" target="_blank" rel="noreferrer">LinkedIn</a>
<a class="button button-secondary" href="https://github.com/LucasPotin98" target="_blank" rel="noreferrer">GitHub</a>
<a class="button button-secondary" href="https://scholar.google.fr/citations?user=1_SXGLMAAAAJ&hl=fr" target="_blank" rel="noreferrer">Google Scholar</a>
</div>
</div>
<div class="hero-photo-card" aria-label="Portrait of Lucas Potin">
<img src="Photo_Lucas.jpeg" alt="Portrait of Lucas Potin" class="hero-photo">
</div>
</section>
<section class="section split narrative-section" id="about">
<div>
<p class="eyebrow">About</p>
<h2>From graph mining to applied AI</h2>
</div>
<div class="prose node-prose">
<p>
I like solving problems from data. This curiosity led me from applied mathematics to data science, then to a PhD focused on detecting corruption in public procurement through the analysis of complex graphs.
</p>
<p>
Today, I work both on predictive models and on tools built around generative AI. Technologies evolve, but what motivates me remains the same: starting from a concrete problem, exploring different approaches and building useful solutions.
</p>
<p>
Outside work, I play competitive tennis and regularly play bridge.
</p>
</div>
</section>
<section class="section journey-graph-section" id="journey">
<div class="section-heading">
<p class="eyebrow">Journey</p>
<h2>From applied mathematics to data tools</h2>
</div>
<div class="journey-graph" aria-label="Lucas Potin journey">
<svg class="journey-edges" viewBox="0 0 300 100" preserveAspectRatio="none" aria-hidden="true" focusable="false">
<path class="journey-edge side-edge" d="M150 8 C118 12 88 16 78 24"></path>
<path class="journey-edge side-edge" d="M150 8 C182 12 212 16 222 24"></path>
<path class="journey-edge main-edge" d="M78 24 C82 39 116 47 150 55"></path>
<path class="journey-edge main-edge" d="M222 24 C218 39 184 47 150 55"></path>
<path class="journey-edge main-edge" d="M150 55 C150 68 150 79 150 90"></path>
</svg>
<article class="journey-node-card journey-root">
<div class="journey-content">
<span class="journey-date">2016–2020</span>
<h3>Engineering degree in mathematical engineering</h3>
<p>Applied mathematics, modeling and optimization.</p>
</div>
</article>
<article class="journey-node-card journey-degree">
<div class="journey-content">
<span class="journey-date">2020</span>
<h3>MSc in Data Science</h3>
<p>Machine learning, statistics and applied data projects.</p>
</div>
</article>
<article class="journey-node-card journey-phd">
<div class="journey-content">
<span class="journey-date">2021–2025</span>
<h3>PhD in Data Mining</h3>
<p>Graph analysis and anomaly detection in public procurement.</p>
</div>
</article>
<article class="journey-node-card journey-current">
<div class="journey-content">
<span class="journey-date">Today</span>
<h3>Data Scientist @ GSE</h3>
<p>Forecasting, generative AI and decision-support tools.</p>
</div>
</article>
<span class="journey-node journey-node-origin" aria-hidden="true"></span>
<span class="journey-node journey-node-engineer" aria-hidden="true"></span>
<span class="journey-node journey-node-degree" aria-hidden="true"></span>
<span class="journey-node journey-node-phd" aria-hidden="true"></span>
<span class="journey-node journey-node-current" aria-hidden="true"></span>
</div>
</section>
<section class="section skills-section" id="skills">
<div class="section-heading">
<p class="eyebrow">Skills</p>
<h2>Expertise & technologies</h2>
</div>
<div class="skills-cloud">
<article class="skills-group">
<h3>Data Science & ML</h3>
<div class="skill-balls">
<span>Machine Learning</span>
<span>Statistics</span>
<span>Graph Mining</span>
</div>
</article>
<article class="skills-group">
<h3>Generative AI</h3>
<div class="skill-balls">
<span>LLM</span>
<span>RAG</span>
<span>AI Agents</span>
</div>
</article>
<article class="skills-group">
<h3>Engineering & Cloud</h3>
<div class="skill-balls">
<span>Python</span>
<span>SQL</span>
<span>Azure</span>
<span>Elasticsearch</span>
<span>Docker</span>
</div>
</article>
</div>
</section>
<section class="section" id="projects">
<div class="section-heading">
<p class="eyebrow">Projects</p>
<h2>Selected work</h2>
<p>Apps, dashboards and APIs developed around concrete data problems.</p>
</div>
<div class="card-grid">
<article class="work-card">
<div class="card-meta">Graph Mining | Dashboard</div>
<h3>DramaPang</h3>
<dl class="project-details">
<dt>Objective</dt>
<dd>Classify plays from the relationships between characters.</dd>
<dt>Approach</dt>
<dd>Build character networks and extract discriminant patterns.</dd>
<dt>Result</dt>
<dd>Interactive web application.</dd>
</dl>
<div class="tags">
<span>Graph Mining</span>
<span>Classification</span>
<span>NetworkX</span>
</div>
<div class="card-actions">
<a href="https://dramapang.streamlit.app/" target="_blank" rel="noreferrer">App</a>
<a href="https://github.com/LucasPotin98/DramaPang" target="_blank" rel="noreferrer">Code</a>
</div>
</article>
<article class="work-card">
<div class="card-meta">Machine Learning | Dashboard</div>
<h3>Retail sales prediction</h3>
<dl class="project-details">
<dt>Objective</dt>
<dd>Forecast weekly sales by product family.</dd>
<dt>Approach</dt>
<dd>Compare forecasting models, including Prophet and XGBoost.</dd>
<dt>Result</dt>
<dd>Interactive dashboard for visualization and comparison.</dd>
</dl>
<div class="tags">
<span>Forecasting</span>
<span>Machine Learning</span>
<span>XGBoost</span>
</div>
<div class="card-actions">
<a href="https://sales-prediction-dashboard.streamlit.app/" target="_blank" rel="noreferrer">App</a>
<a href="https://github.com/LucasPotin98/sales-prediction-dashboard/" target="_blank" rel="noreferrer">Code</a>
</div>
</article>
<article class="work-card">
<div class="card-meta">Data engineering | API</div>
<h3>Siretizator</h3>
<dl class="project-details">
<dt>Objective</dt>
<dd>Automatically match organizations to their SIRET identifier.</dd>
<dt>Approach</dt>
<dd>Data normalization and fuzzy matching against the SIRENE database.</dd>
<dt>Result</dt>
<dd>Entity reconciliation API.</dd>
</dl>
<div class="tags">
<span>Open Data</span>
<span>Entity Resolution</span>
<span>FastAPI</span>
</div>
<div class="card-actions">
<a href="https://siretizator.onrender.com/" target="_blank" rel="noreferrer">API</a>
<a href="https://github.com/LucasPotin98/Siretizator_Lite/tree/main" target="_blank" rel="noreferrer">Code </a>
</div>
</article>
</div>
</section>
<section class="section publications-section" id="publications">
<div class="section-heading">
<p class="eyebrow">Research</p>
<h2>Scientific publications</h2>
<p>
Work around graph mining, open data and public procurement analysis.
</p>
</div>
<div class="publication-list">
<article class="publication-card">
<div class="publication-meta">
<span>2025</span>
<span>Data in Brief</span>
</div>
<h3>Processing and consolidation of open data on public procurement in France (2015–2023)</h3>
<p class="publication-summary">
Consolidated database of French public procurement contracts designed to support economic analysis, research and anomaly detection.
</p>
<div class="key-figures">
<div>
<strong>2015–2023</strong>
<span>period covered</span>
</div>
<div>
<strong>~300K</strong>
<span>contracts consolidated</span>
</div>
</div>
<p class="publication-authors">
<strong>Authors:</strong> A. Deschamps, L. Potin
</p>
<div class="publication-links">
<a href="https://www.sciencedirect.com/science/article/pii/S2352340925000095" target="_blank" rel="noreferrer">Article</a>
<a href="https://github.com/AdrienDeschampsAU/BeauAMP" target="_blank" rel="noreferrer">Code</a>
</div>
</article>
<article class="publication-card">
<div class="publication-meta">
<span>2025</span>
<span>ACM TKDD</span>
</div>
<h3>Pattern-Based Graph Classification: Comparison of Quality Measures and Importance of Preprocessing</h3>
<p class="publication-summary">
Systematic comparison of quality measures used to select discriminant patterns for graph classification tasks.
</p>
<div class="key-figures">
<div>
<strong>38</strong>
<span>measures compared</span>
</div>
<div>
<strong>92%</strong>
<span>fewer patterns on one benchmark</span>
</div>
</div>
<p class="publication-authors">
<strong>Authors:</strong> L. Potin, R. Figueiredo, V. Labatut, C. Largeron
</p>
<div class="publication-links">
<a href="https://dl.acm.org/doi/10.1145/3743143" target="_blank" rel="noreferrer">Article</a>
<a href="https://github.com/CompNet/gpQualMeasComp" target="_blank" rel="noreferrer">Code</a>
</div>
</article>
<article class="publication-card">
<div class="publication-meta">
<span>2023</span>
<span>Nature, Scientific Data</span>
</div>
<h3>FOPPA: an open database of French public procurement award notices from 2010–2020</h3>
<p class="publication-summary">
Open, cleaned and documented database enabling large-scale study of French public procurement from TED.
</p>
<div class="key-figures">
<div>
<strong>2010–2020</strong>
<span>period covered</span>
</div>
<div>
<strong>~1.4M</strong>
<span>lots integrated</span>
</div>
<div>
<strong>97.5%</strong>
<span>buyers identified</span>
</div>
</div>
<p class="publication-authors">
<strong>Authors:</strong> L. Potin, V. Labatut, P.H. Morand, C. Largeron
</p>
<div class="publication-links">
<a href="https://www.nature.com/articles/s41597-023-02213-z" target="_blank" rel="noreferrer">Article</a>
<a href="https://hal.science/hal-04101350v1/document" target="_blank" rel="noreferrer">PDF</a>
<a href="https://github.com/CompNet/FoppaInit" target="_blank" rel="noreferrer">Code</a>
</div>
</article>
<article class="publication-card">
<div class="publication-meta">
<span>2023</span>
<span>ECML PKDD</span>
</div>
<h3>Pattern mining for anomaly detection in graphs: Application to fraud in public procurement</h3>
<p class="publication-summary">
Explainable anomaly detection method for graphs applied to the identification of risk-prone situations in public procurement.
</p>
<div class="key-figures">
<div>
<strong>15,793</strong>
<span>patterns extracted</span>
</div>
<div>
<strong>0.95</strong>
<span>F1-score on FOPPA</span>
</div>
<div>
<strong>Explainable</strong>
<span>discriminant patterns identified</span>
</div>
</div>
<p class="publication-authors">
<strong>Authors:</strong> L. Potin, R. Figueiredo, V. Labatut, C. Largeron
</p>
<div class="publication-links">
<a href="https://dl.acm.org/doi/10.1007/978-3-031-43427-3_5" target="_blank" rel="noreferrer">Article</a>
<a href="https://arxiv.org/pdf/2306.10857" target="_blank" rel="noreferrer">PDF</a>
<a href="https://github.com/CompNet/Pang/tree/main" target="_blank" rel="noreferrer">Code</a>
</div>
</article>
</div>
</section>
<section class="section contact-section" id="contact">
<div>
<p class="eyebrow">Contact</p>
<h2>Let's stay in touch</h2>
</div>
<div class="contact-actions">
<a class="button button-primary" href="mailto:lucas.potin.data@gmail.com">Email</a>
<a class="button button-primary" href="https://www.linkedin.com/in/lucas-potin/" target="_blank" rel="noreferrer">LinkedIn</a>
</div>
</section>
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<footer class="site-footer">
<p>Lucas Potin</p>
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